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'f E. L. SBLEY.

RIVETING MACHINE.

No. 358,224. Patented Feb. 22, 1887..

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UNiTED STATES PATENT OFFICE EDVARDL. SIBLEY,OF BENNINGTON, VERMONT.

Rivl-:TlN/e-MACHINE.

SPECIFICATION forming part of Letters Patent No. 358,224, dated February 22, 1887.

Application tiled March 1.6, 1886. Serial No: 105,403. (No model.)

d. cast in one piece of metal.

To all whom t may concern: Y

Be it known that I, EDWARD L. SIELEY, a resident of'Bennington, in the county of Benv` nington and State of Vermont, have invented certain new and useful Improvements in Riveting-Machines; and I d o hereby declare that the following is a full, clear, and eXact description of the invention, that will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of this specification. I

Similar letters refer to similar parts in the several figures therein.

t My invention relates to improvements in riveting-machines adapted to insert and fasten hollow rivets having a closed perforative end and an open fianged end, such as I described in my application for Letters Patent filed in the United States Patent Office October 29, 1885, and now pending therein, for improvements in rivets.

The object of the invention will appear from the following description:

The invention consists in the novel construction and combination of parts hereinafter described, and pointedout in the claims.

Figure l of the drawings is a side elevation of my improved device. Fig. 2 is a front elevation of same. Fig. 3 is a central vertical section of same. Fig. 4 is an end View of parts shown in Figs. 5 and 6. Fig. 5 is a side elevation of punch b detached. Fig. 6 is a side elevation of punch g detached. Fig.7 isaplan View of punch-support E. Fig. 8 is a front elevation of lever-support with the lever removed.` Fig. 9 is a crosssection taken ou "same line as that shown in Fig. 1, showing punch a supported on a lower plane and a rivet set upon several thicknesses of paper.

The head A issupported over the base B by a connecting-arm, D, all being preferably The head is made tubular to receive the cylindrical punch b f, adapted to slide vertically'therein, also with the upwardly-projecting ears A A, provided with the pivots h, upon which the leverG fulcrums, as more fully explained hereinafter.

The punch b is provided with the enlarged head f,.adapted to slide in a correspondinglyenlarged portion of the tubular opening in the head. A coil-spring, S, is inserted inthe enlarged opening, being supported by the shoulder t' in the head. The punch bis inserted through the spring and supported by its shoulder j resting upon the upper end of the spring, as shown in Fig. 3. rIhe tension of vthe spring is sufficient to force the head f of the punch up against the handle and hold the handle up against the pivots h h when at rest,

as shown in Fig. 3.

The punch b is provided with a central opening throughout its length, adapted to receive the punch g g, which is supported therein by the shoulders 7c in punch b and m in punch g. The mouth of the opening is provided with asharp shoulder, q, which forms a cuttingcdge.

The punch g is adapted to slide vertically in punch b to make and break contact between the shoulders k and m, and is provided at its lower end with a concave face adapted to receive the perforative end of the rivet.

That portion of the lever G which comes in Contact with the punches is provided with a curved surface transversely plane on one side, but grooved ou the opposite side, to present the groove e (shown in Fig.2) and the iianges d. When the lever is operated by tipping it to the right, the flanges slide upon the top of punch-head f and depress the punch b, while the inner punch is only depressed by contact with the bottom of groove e; but when the lever is tipped to the left the surface acts upon both punches alike, and they are moved together as one punch.

The base B is provided with the anvil B', which has a central aperture adapted to receive the perforating-rivet-supporting punch a, vertically adjustable therein. The swingplate E, pivoted at one end, G, to the base, is

provided with an inclined surface, n, and an operating-handle, H, and-retainingspring F.

The machine is operated as follows: A rivet (shown by dotted lines in Fig. 3) is slipped onto punch a to the position there shown, the closed end of the rivet resting upon the point or face of the punch, and the flanges surrounding the open end of the rivet resting upon the anvil B'. The folds of paper to be fastened together by the rivet are then inserted between the point of the rivet and the punches b g. The lever C is then tipped to the right, which forces the punch b down upon the folds, and the rivet is forced up through them to orinto the central aperture of the punch b, a portion of the folds being cut out and forced before it into said aperture, which is directly over rthe punch a. The lever C is then returned to a vertical position, and the spring S forces the punch b up again off the inserted folds and its lower end into about the saine plane with the lower end of punch g, as shown in Fig. 3, which causes punch g to force out from the aperture in punch b the pieces of paper cut Out by the rivet. The support E is then swung back by its handle H until a lower plane occupies the position beneath the punch a, which permits the latter to drop or be easily forced down through the anvil. The lever C is then tipped to the left, which forces both punches b and g down upon the point ofthe rivet, and bends it down upon the folds of the paper as shown in Fig. 9, to form the head I), the punch a having dropped out of the way onto a lower plane of the support. The lever C is then turned back to its vertical position, the papers removed, and the support swung back to support punch a upon its higher plane, the punch traveling up the incline n, when a new rivet is placed upon the punch, and the operation may be repeated as often as desired.

I ani thus able to quickly insert a rivet through folds of paper or similar substances and upset the rivet thereon to secure the folds together, the perforations being made and the rivet inserted by one and the same movement.

I provide the rivet-engaging end of punch g with a countersink adapted to receive the perforative end of the rivets, and having its bottom concaved to fit the convexed form of said perforative end, as shown.

The friction between the rivets and the supporting-punches et is suiiicient to retain the punch within the rivet after the latter is inserted through the paper and support E withdrawn7 and until the punch g strikes the rivet to set it upon the paper, when the punch a yields and falls down out of the rivet. The punch a thus serves to keep the rivet in the proper place on the anvil to receive the settingpunch.

When the rivets are set, the punches g and b both descend together and act as one setting-punch, the action of punch b being auxiliary to that of punch g.

What I claimas new, and desire to secure by Letters Patent, is-

l. In a riveting-machine, the rivet-holder a, supported on a plate, E, having a higher and lower plane separated by the incline n, in combination with the punches I; fand g, arranged to operate in the manner described.

2. In a riveting-n1achine, the ea1n-lever C, provided with two opposite open bearings which turn on two opposite fulcrums, h lt, as and for the purpose specified.

In testimony whereof I have hereunto set my hand this 12th day of March, 1886.

EDI/JARD Il. SIBLEY. Witnesses:

Guo. A. Mosrrnn, XV. H. HoLLIs'rER, Jr. 

